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400890

Sigma-Aldrich

cis-2-Butene

≥99%

Synonym(s):

(2Z)-2-Butene, (Z)-2-Butene, Z-Butene, cis-1,2-Dimethylethylene, cis-2-Butylene

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About This Item

Linear Formula:
CH3CH=CHCH3
CAS Number:
Molecular Weight:
56.11
Beilstein:
1361341
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

2 (vs air)

vapor pressure

1414 mmHg ( 21 °C)

Assay

≥99%

form

gas

autoignition temp.

615 °F

expl. lim.

9.7 %

bp

3.7 °C (lit.)

mp

−139 °C (lit.)

SMILES string

[H]\C(C)=C(/[H])C

InChI

1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-

InChI key

IAQRGUVFOMOMEM-ARJAWSKDSA-N

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Application

cis-2-Butene is an unsaturated olefinic hydrocarbon used as a precursor in the polymerization of gasoline. It is also used to synthesize butadiene and other aliphatic C4/C5 organic molecules. It is also employed as a cross-linking agent.

Packaging

Supplied in a Sure/Pac cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

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Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

WGK 3

Flash Point(F)

10.4 °F - closed cup

Flash Point(C)

-12 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Basic organic chemicals
Polymer, 117-141 (2002)
Competition and miscibility of isodimorphism and their effects on band spherulites and mechanical properties of poly (butylene succinate-co-cis-butene succinate) unsaturated aliphatic copolyesters
Yu Y, et al.
Polymer, 150, 52-63 (2018)
Franz Worek et al.
Archives of toxicology, 86(9), 1379-1386 (2012-03-23)
The reactivation of organophosphorus compound (OP)-inhibited acetylcholinesterase (AChE) by oximes is inadequate in case of different OP nerve agents. This fact led to the synthesis of numerous novel oximes by different research groups in order to identify more effective reactivators.
Hao Ren et al.
The Journal of chemical physics, 133(6), 064702-064702 (2010-08-17)
Scanning tunneling microscopy (STM) topographical images and inelastic electron tunneling spectra (IETS) of a cis-2-butene molecule adsorbed on a Pd(110) surface have been simulated by first-principles calculations. Calculations have eliminated the ambiguity between the STM image and the adsorption orientation
Nadiya Bakhiya et al.
Archives of toxicology, 84(7), 563-578 (2010-03-20)
Furan is formed during commercial or domestic thermal treatment of food. The initial surveys of furan concentrations in heat-treated foods, published by European and US authorities, revealed the presence of relatively high furan levels in coffee, sauces, and soups. Importantly

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